动作3：获得在像素的显示对象

问题描述

我如何枚举像素相对于舞台下的显示对象？

How can I enumerate display objects under a pixel relative to the stage?

澄清：我想写这让（X，Y）作为输入，并返回一个数组对象作为输出的功能。

Clarification: I want to write a function which get (x,y) as input and returns an array of objects as output.

更新：我想避免遍历所有的显示对象，以分辨出哪一个是指定像素下

update: I want to avoid looping over all the display objects, to tell which one is under the specified pixel.

推荐答案

不限的DisplayObjectContainer（如MovieClip或阶段）具有一个称为getObjectsUnderPoint方法，返回显示对象根据该点的阵列。它采用Point对象作为参数。

Any DisplayObjectContainer (such as a MovieClip or the stage) has a method called getObjectsUnderPoint that returns an array of display objects under that point. It takes a Point object as an argument.

var myObjects: Array = stage.getObjectsUnderPoint(new Point(5, 5));

如果您使用的是它的一类，不要忘记导入flash.geom.Point;

If you are using it in a class don't forget to import flash.geom.Point;

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